.middle {
    display: flex;
    justify-content: center;
    margin: 50px;
}

.middle > div {
    width: 1000px;
    border: 1px solid red;

}
.title {
    padding: 10px;
}
.middle > div > div:nth-child(2) > div:nth-child(1) {
    text-align: center;
}

.middle > div > div:nth-child(2) > div:nth-child(2) {
    display: flex;
    justify-content: center;
}

.middle > div > div:nth-child(2) > div:nth-child(2) > div {
    width: 600px;
}

.message > div > div:nth-child(1) {
    line-height: 50px;
}

.message > div > div:nth-child(2) {
    background-color: rgb(238, 238, 238);
    line-height: 50px;
    padding: 0 20px;
    border: 1px dashed red;
    white-space: nowrap;
    overflow: hidden;
}

.message > div:nth-child(3) > div:nth-child(2) {
    height: 100px;
    line-height: 30px;
}

.message > div:last-child {
    display: flex;
    justify-content: center;
}

.message > div:last-child > div {
    margin: 30px;
    padding: 0 60px;
    background-color: rgb(230, 145, 55);
    color: white;
    cursor: pointer;
}